Last modified: 2013-03-26 08:36:09 UTC
Translate depends on ULS. ULS is disabled for anonymous users on WMF projects. Currently I have added dependency on the ext.uls.init module to have the language selector working. This is not ideal however, since it also loads webfonts and input methods.
I796a7c9cce0de42bf8aa06b26e383e0075dbe1dd should solve this